Tool bit



FIG. 1 is a front perspective view of a tool bit showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is an enlarged view of portion 8 encircled in FIG. 1.

The dashed broken lines in the drawings encircle portions of the claimed design that are illustrated in enlargements and form no part of the claimed design. 

CLAIM The ornamental design for a tool bit, as shown and described. 